Part of this information is a hoax. The page at this link:
http://www.healthyfoodteam.com/human-meat-found-in-mcdonalds-meat-factory/
says:
"In the words of FBI agent Lloyd Harrison for Huzler, “The worst part is that it’s not only human meat, it’s child meat."
which proves that the article originated at this site:
https://www.huzlers.com/mcdonalds-exposed-for-using-human-meat/
whose motto (visible at the top of the page) is "because you love being lied to", and which describes itself (at the bottom of the page) as "a fauxtire and fictional news blog".
So I think that link should be removed. There are other articles on the web about human DNA being found in burgers and hot dogs. Use one of them.
Of course, that DNA could have come from the meatpackers shedding skin cells or chopping their fingers off.